Home / 3,378.14-5,064.57-2,145.32

Finding the Fourth Proportional to 3,378.14, 5,064.57 and 2,145.32

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Solution

The fourth proportional to 3,378.14, 5,064.57 and 2,145.32 is: 3,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.14 : 5,064.57 = 2,145.32 : x
  2. Step 2: Convert to fraction form
    3,378.14/5,064.57 = 2,145.32/x
  3. Step 3: Cross multiply
    3,378.14x = 5,064.57 × 2,145.32
  4. Step 4: Simplify right side
    3,378.14x = 10,865,097.99
  5. Step 5: Solve for x
    x = 10,865,097.99/3,378.14
  6. Step 6: Final answer
    x = 3,216.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.